Plate for an antenna



FIG. 1 is a top, front, right side perspective view showing a plate for an antenna having my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being the same as FIG. 2;

FIG. 3 is a front elevation view thereof, the rear elevational view being the same as FIG. 3; and,

FIG. 4 is a left side elevational view thereof, the right side elevational view being the same as FIG. 1. 

The ornamental design for a plate for an antenna, as shown and described. 